of course he did, syringes provided by McNamee(his trainer and accuser) have clemens dna on them according to lab results, so I don't think he can deny it

That's easy to deny. As a trainer, it would be easy to collect DNA and put them into syringes. And what, he just had them lying around for years, in case Clemens ever took him to court? It makes McNamee look like a snake.